Genealogy 47 Probate records 44 Sources 31 Archives 14 Handbooks, manuals, etc 11 History 9 Handbooks 7 more ... Cities and towns 6 Ethnicity 6 Church records and registers 5 Directories 5 Ethnic groups 5 Ethnic relations 5 Jews 4 Statistics 4 Census 3 Ethnic attitudes 3 Austrian Americans 2 Chronology 2 Cultural pluralism 2 Danish Americans 2 Employment 2 Jewish children 2 Johnstown Flood 2 Migration 2 Population 2 African American Presbyterians--Pennsylvania--Philadelphia 1 African Americans--Education--Pennsylvania--Philadelphia 1 African Americans--Politics and government--20th century 1 Anthropology students 1 Anthropology--Methodology 1 Armed Forces 1 Armenian massacres, 1894-1896 1 Art Historians--United States--20th century 1 Art, American--18th century 1 Assimilation (Sociology) 1 Aufsatzsammlung 1 Bibliography 1 Black nationalism--Pennsylvania--Philadelphia 1 Boundaries 1 less ...